A parodyTwitter account that goes by the name "Red Line Ghost Train" was created Thursday hours after a Red Line train barreledpast four stations despite having no operator.

The person behind the Twitter handle @ghosttrainred began tweeting around 10: 30 a.m., four hours after the unmanned train, which was carrying 50 passengers, traveled from Braintree Station to North Quincy station.By 4 p.m., the account had racked up more than 450 followers.

Tweets included jokes about what theMBTAdescribed as a"highly troubling" incident. Gov. Charlie Baker said the train was tampered with and that the matter was under investigation.